MicroSquirt.com read only forum (Jan.15,2018)

1983 VW GTI
1.8 l stock
MSI V2.2 flybackboard installed
19.3 lb/hr low impedence injectors

I have read most of the postings regarding flyback and injector noise and a lot of the postings refer to a very good posting

http://www.msefi.com/viewtopic.php?p=93324&highlight=#93324

I have two questions ...

Thanks to a fellow squirter (63vette) I have found that when I used EasyTherm that I loaded a oldeer embedded code that does not support the Flyback board. I now have V2.986 loaded and the flyback board working properly and temp sensors reading correct.

Thanks again Evan for the help

Kirk

Hi Luke

As before Digikey does not have stock and the data sheet has a note on it "not recomended for new disign Please use PR3001G - PR3007G". Has anyone tried a PR3002G? I have attached both data sheets, they look close to the same.
Any input is appreciated

Thanks Kirk

Thanks Luke - I'll try that when I get the parts.

Kirk

I have driven about 5000 kms since the last posting and still need 70% PWM to run. Today I have replaced the FETs IRFIZ34 (Q2 and Q7) no change. Then I replaced the FET driver IXDI404PI (U7) no change. On the flyback board I replced the Q101 and Q104 from a TIP32C to aTIP42 and there is no ...

Roger

I used a 1K ohm 1 watt risitor and put it near the coil on the wire thatr runs from the coil - to pin 24 and the R10 is still a 1K ohm 1/2 watt. This has reduced the temp of the R10 considerably. After running at cruise (2800 - 3000 rpm) the temp runs 40 - 45* C.
I reposted the flyback ...

1983 VW GTI 1.8L stock
Injectors 19.3 lbs. 2.6 ohm (P/N 0-280-150-812)
MS I V2.2 code 3.0
Megatune 2.20

I have read through the manuals and have searched this forum under "flyback" and have scanned over 400 postings. and the information I get that if the PWM has to be set to 70% with a fly back ...

Roger

This morning when trying to start cold (15*F) I had to increase the PWM to 70% from 64, it would not start at 64%. I also noticed that the increase almost completely eliminated a hesitation coming of idle.
I have taken the car on tw short drives as the idle is good and I have two questioons ...

Roger

Yesterday as per your suggestion I tried different crank pulses with the injectors out. There didn't seem to be much difference, but I also noticed this time that two of the injectors were dripping when the system was off. I found another set of injectors that do not drip but also do not seem ...

Roger

I have removed the injectors from the engine so I can see if they are delivering fuel, they are but I really do not have anything to compare to, but it doesn't seem to be much. I remove the electrical connectors from the injectors and measured voltage and I am only getting 3.9 v. I set the ...